Gates and Inverters

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Logic Type	Number of Circuits	Number of Inputs	Features	Voltage - Supply	Current - Quiescent (Max)	Current - Output High, Low	Input Logic Level - Low	Input Logic Level - High	Max Propagation Delay @ V, Max CL	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case
	SN74HC02DR IC GATE NOR 4CH 2-INP 14SOIC Texas Instruments	13,533 In Stock 5,346 Marketplace	1 : $0.58000 Cut Tape (CT) 2,500 : $0.24928 Tape & Reel (TR)	74HC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel® Bulk	Active	NOR Gate	4	2	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	15ns @ 6V, 50pF	-40°C ~ 85°C	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)
	SN74HC08DR IC GATE AND 4CH 2-INP 14SOIC Texas Instruments	976 In Stock	1 : $0.60000 Cut Tape (CT) 2,500 : $0.25596 Tape & Reel (TR)	74HC	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	AND Gate	4	2	-	2V ~ 6V	2 µA	5.2mA, 5.2mA	0.5V ~ 1.8V	1.5V ~ 4.2V	17ns @ 6V, 50pF	-40°C ~ 85°C	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)

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Products in the logic gate and inverter family perform elementary logical operations on individual logic signals such as AND, NOT, OR, etc. Unlike flip-flops they do not have a capacity to store information and respond immediately to the signals presented to their inputs. Though long supplanted by implementations in integrated circuit form for realizing complex functions, discrete gates remain available for use in circumstances where only very simple logical functions are needed.